In　this　paper,　we　propose　a　relational　anonymous　P2P　communication　network　evaluation　model　based　on　Markov　chain　(AEMC),　and　show　how　to　extend　our　model　to　the　anonymous　evaluation　of　sender　and　receiver　relationship　anonymity　when　the　attacker　attacks　the　anonymous　P2P　communication　network　and　obtains　some　information.　Firstly,　the　constraints　of　the　evaluation　model　(the　attacker　assumption　for　message　tracing)　are　specified　in　detail;　then　the　construction　of　AEMC　anonymous　evaluation　model　and　the　specific　evaluation　process　are　described;　finally,　the　simulation　experiment　is　carried　out,　and　the　evaluation　model　is　applied　to　the　probabilistic　anonymous　evaluation　of　the　sender　and　receiver　relationship　of　the　attacker　model,　and　the　evaluation　is　carried　out　from　the　perspective　of　user　(message).　©　2021　IEEE.